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Finding the Fourth Proportional to 7,007.64, 9,669.39 and 4,358.70

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Solution

The fourth proportional to 7,007.64, 9,669.39 and 4,358.70 is: 6,014.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,007.64 : 9,669.39 = 4,358.70 : x
  2. Step 2: Convert to fraction form
    7,007.64/9,669.39 = 4,358.70/x
  3. Step 3: Cross multiply
    7,007.64x = 9,669.39 × 4,358.70
  4. Step 4: Simplify right side
    7,007.64x = 42,145,970.19
  5. Step 5: Solve for x
    x = 42,145,970.19/7,007.64
  6. Step 6: Final answer
    x = 6,014.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.